I took my Tachometer apart, can it be saved?!

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Guzziando
Posts: 43
Joined: 02 Jan 2025 13:26
Location: Cambridge

I took my Tachometer apart, can it be saved?!

Post by Guzziando »

The capacitors have exploded, and it looks prety nasty inside. I do not have a problem with replacing components, but what else do I need to be aware of that could mean that it is not worth repairing. The needle is stiff, and does not bounce back. Is there any reference material for rebuilding Veglia Tachometers?
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Guzziando
Posts: 43
Joined: 02 Jan 2025 13:26
Location: Cambridge

Re: I took my Tachometer apart, can it be saved?!

Post by Guzziando »

Further pictures:
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Guzziando
Posts: 43
Joined: 02 Jan 2025 13:26
Location: Cambridge

Re: I took my Tachometer apart, can it be saved?!

Post by Guzziando »

Further pictures:
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George 350
Posts: 567
Joined: 16 Jun 2007 09:43
Location: Northampton

Re: I took my Tachometer apart, can it be saved?!

Post by George 350 »

Hi,
Whilst no one has replied, I know that some people with way more knowledge than me have done a repair/rebuild of these, but it isn't an easy job.
The most recent posting on this subject was that somebody replaced the 'guts' inside with those from a cheap Chinese generic rev counter for very little cost.

Might be worth a search.
Regards, George
George
350 Sport 1978, 350 Strada 1978
650 Norton 1967, 650 Kawasaki 1977 and 650 Enfield 2019
Tinker
Posts: 148
Joined: 04 May 2012 08:04
Location: uk Carlisle

Re: I took my Tachometer apart, can it be saved?!

Post by Tinker »

I don’t know anything about them. But if it was mine I would try to save it! Capacitors are cheap if you can get enough info off the old ones! Is the rotor free? Are there any electricalcontacts on the rotor? Good luck
scbond2@yahoo.co.uk
Posts: 76
Joined: 03 Aug 2018 23:18
Location: kent uk

Re: I took my Tachometer apart, can it be saved?!

Post by scbond2@yahoo.co.uk »

Maybe try Bengy Straw?
MickeyMoto
Posts: 2730
Joined: 22 Nov 2008 17:41
Location: Even further oop North

Re: I took my Tachometer apart, can it be saved?!

Post by MickeyMoto »

Maybe try an instrument expert like The Gauge Man, Peter Bond.
-------------------------------------------------------

Mike.
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George 350
Posts: 567
Joined: 16 Jun 2007 09:43
Location: Northampton

Re: I took my Tachometer apart, can it be saved?!

Post by George 350 »

I believe that Mark Bridger of this parish has repaired one, but concluded that it isn't commercially viable to do so (?).
Only other help may be to look up 'Ferrari Dino' rev counter repair as they are very similar inside.
George
350 Sport 1978, 350 Strada 1978
650 Norton 1967, 650 Kawasaki 1977 and 650 Enfield 2019
Guzziando
Posts: 43
Joined: 02 Jan 2025 13:26
Location: Cambridge

Re: I took my Tachometer apart, can it be saved?!

Post by Guzziando »

It has been a while ago, but I finally got around to fixing my Tachometer. I bought a very rusty Tachometer from a club member, I had no idea whether it would work, but after testing it, the electronics seemed OK, but the mechanism was not great. I bought another Tachometer from Ebay as 'spares or repair', it was labelled as a Veglia Electronique. The mechanism was in good condition, so I put the two together. USing a 12v A/C output signal as shown by Paul Compton in his video, I was able to tune the Tachometer somewhere near. I then attached it to my bike to try and get it more precise. I did get the bezel fitted by Timeless Motorcycles, they were really good to work with.
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3potjohn
Posts: 1464
Joined: 02 Jun 2007 13:58
Location: Devon

Re: I took my Tachometer apart, can it be saved?!

Post by 3potjohn »

That’s a really good outcome. Both mine are of the mechanical variety but it has spurred me on to try and repair my electronic tacho from a BMW which stopped working.
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